https://bugs.kde.org/show_bug.cgi?id=356988

            Bug ID: 356988
           Summary: System-Config crashed sometime by speedy mouse click
                    in module workspace effects
           Product: systemsettings
           Version: 5.4.3
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: lin...@gmx.net

Application: systemsettings5 (5.4.3)

Qt Version: 5.5.0
Operating System: Linux 4.1.13-5-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
When  start system-config dialog 
and then i click in workspace 
and at the next moment on the workspace effects button. 
Then it crashed

The crash can be reproduced sometimes.

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f86da78b780 (LWP 4299))]

Thread 6 (Thread 0x7f86c6922700 (LWP 4312)):
#0  0x00007f86d64f3c1d in poll () at /lib64/libc.so.6
#1  0x00007f86d32cf422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f86d32d100f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f86c92a8c29 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f86d6bea55f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f86d2a590a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f86d64fc04d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f86af270700 (LWP 770)):
#0  0x00007f86d2a5f85a in __lll_unlock_wake () at /lib64/libpthread.so.0
#1  0x00007f86d2a5c5d9 in _L_unlock_554 () at /lib64/libpthread.so.0
#2  0x00007f86d2a5c516 in __pthread_mutex_unlock_usercnt () at
/lib64/libpthread.so.0
#3  0x00007f86d1bb9ce5 in  () at /usr/lib64/libGL.so.1
#4  0x00007f86d1bbf018 in  () at /usr/lib64/libGL.so.1
#5  0x00007f86ce511001 in  () at /usr/lib64/tls/libnvidia-tls.so.352.63
#6  0x00007f86d257db60 in  () at /usr/lib64/libglib-2.0.so.0
#7  0x00007f86d253c999 in g_main_context_check () at
/usr/lib64/libglib-2.0.so.0
#8  0x00007f86d253cdf8 in  () at /usr/lib64/libglib-2.0.so.0
#9  0x00007f86d253cf7c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#10 0x00007f86d6e1ba5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQt5Core.so.5
#11 0x00007f86d6dc2a63 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQt5Core.so.5
#12 0x00007f86d6be584a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#13 0x00007f86d51705f8 in  () at /usr/lib64/libQt5Qml.so.5
#14 0x00007f86d6bea55f in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007f86d2a590a4 in start_thread () at /lib64/libpthread.so.0
#16 0x00007f86d64fc04d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f86a0b67700 (LWP 810)):
#0  0x00007f86d64f3c1d in poll () at /lib64/libc.so.6
#1  0x00007f86d253ce64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f86d253cf7c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f86d6e1ba5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQt5Core.so.5
#4  0x00007f86d6dc2a63 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQt5Core.so.5
#5  0x00007f86d6be584a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f86d51705f8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f86d6bea55f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f86d2a590a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86d64fc04d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f869b7ff700 (LWP 1326)):
#0  0x00007f86d6e1a62b in QTimerInfoList::timerWait(timespec&) () at
/usr/lib64/libQt5Core.so.5
#1  0x00007f86d6e1b82e in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007f86d253c4ad in g_main_context_prepare () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f86d253cd80 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f86d253cf7c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#5  0x00007f86d6e1ba5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQt5Core.so.5
#6  0x00007f86d6dc2a63 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQt5Core.so.5
#7  0x00007f86d6be584a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f86d51705f8 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f86d6bea55f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f86d2a590a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f86d64fc04d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f86a4d05700 (LWP 1593)):
#0  0x00007f86d64f3c1d in poll () at /lib64/libc.so.6
#1  0x00007f86d253ce64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f86d253cf7c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f86d6e1ba5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQt5Core.so.5
#4  0x00007f86d6dc2a63 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQt5Core.so.5
#5  0x00007f86d6be584a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f86d51705f8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f86d6bea55f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f86d2a590a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86d64fc04d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f86da78b780 (LWP 4299)):
[KCrash Handler]
#6  0x00007f86d5086fea in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f86d502acc3 in QV4::ExecutionEngine::newStringObject(QV4::Value
const&) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f86d50c78e1 in QV4::Runtime::getProperty(QV4::ExecutionEngine*,
QV4::Value const&, int) () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f86adbc978d in  ()
#10 0x00007f86900eeacc in  ()
#11 0x0000000000000003 in  ()
#12 0x0000000002e28130 in  ()
#13 0x00007f86d50d9a69 in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int,
void**) () at /usr/lib64/libQt5Qml.so.5
#14 0x00007f86d50f3320 in QQmlPropertyPrivate::writeBinding(QObject*,
QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*,
QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at
/usr/lib64/libQt5Qml.so.5
#15 0x0000000002e1a950 in  ()
#16 0x000000000000000a in  ()
#17 0x00007f86d5157a1e in  () at /usr/lib64/libQt5Qml.so.5
#18 0x00007f86d515cfd1 in
QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at
/usr/lib64/libQt5Qml.so.5
#19 0x00007f86d515d5de in
QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () at
/usr/lib64/libQt5Qml.so.5
#20 0x00007f86d5139c9f in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#21 0x00007f86d5139c71 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#22 0x00007f86d5139c71 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#23 0x00007f86d5139c71 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#24 0x00007f86d5139c71 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#25 0x00007f86d50e1414 in QQmlData::signalEmitted(QAbstractDeclarativeData*,
QObject*, int, void**) () at /usr/lib64/libQt5Qml.so.5
#26 0x00007f86d6df4213 in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib64/libQt5Core.so.5
#27 0x00007f86d50d9f9e in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int,
void**) () at /usr/lib64/libQt5Qml.so.5
#28 0x00007f86d50d9777 in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int,
void**) () at /usr/lib64/libQt5Qml.so.5
#29 0x00007f86d50f208e in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData
const&, QVariant const&, QQmlContextData*,
QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#30 0x00007f86d50f2dcf in QQmlPropertyPrivate::writeValueProperty(QObject*,
QQmlPropertyData const&, QVariant const&, QQmlContextData*,
QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#31 0x00007f86d50f3c04 in QQmlPropertyPrivate::writeBinding(QObject*,
QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*,
QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at
/usr/lib64/libQt5Qml.so.5
#32 0x00007f86d515d053 in
QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at
/usr/lib64/libQt5Qml.so.5
#33 0x00007f86d515d5de in
QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () at
/usr/lib64/libQt5Qml.so.5
#34 0x00007f86d5139c9f in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /usr/lib64/libQt5Qml.so.5
#35 0x00007f86d50e1414 in QQmlData::signalEmitted(QAbstractDeclarativeData*,
QObject*, int, void**) () at /usr/lib64/libQt5Qml.so.5
#36 0x00007f86d6df4213 in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib64/libQt5Core.so.5
#37 0x00007f86d570911d in  () at /usr/lib64/libQt5Quick.so.5
#38 0x00007f86d50fa352 in  () at /usr/lib64/libQt5Qml.so.5
#39 0x00007f86d50fa6ea in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#40 0x00007f86d50f5e9c in QQmlComponent::create(QQmlIncubator&, QQmlContext*,
QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#41 0x00007f86d5707fda in  () at /usr/lib64/libQt5Quick.so.5
#42 0x00007f86d5708158 in  () at /usr/lib64/libQt5Quick.so.5
#43 0x00007f86d516688b in  () at /usr/lib64/libQt5Qml.so.5
#44 0x00007f86d50f594b in QQmlComponentPrivate::complete(QQmlEnginePrivate*,
QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt5Qml.so.5
#45 0x00007f86d50f5a07 in QQmlComponentPrivate::completeCreate() () at
/usr/lib64/libQt5Qml.so.5
#46 0x00007f86d50f5890 in QQmlComponent::create(QQmlContext*) () at
/usr/lib64/libQt5Qml.so.5
#47 0x00007f86d570ef74 in QQuickView::continueExecute() () at
/usr/lib64/libQt5Quick.so.5
#48 0x00007f86d570f3ad in  () at /usr/lib64/libQt5Quick.so.5
#49 0x00007f86b6742059 in  () at /usr/lib64/qt5/plugins/kwincompositing.so
#50 0x00007f86b674236d in  () at /usr/lib64/qt5/plugins/kwincompositing.so
#51 0x00007f86b6748367 in  () at /usr/lib64/qt5/plugins/kwincompositing.so
#52 0x00007f86b67496fd in  () at /usr/lib64/qt5/plugins/kwincompositing.so
#53 0x00007f86d7257660 in KPluginFactory::create(char const*, QWidget*,
QObject*, QList<QVariant> const&, QString const&) () at
/usr/lib64/libKF5CoreAddons.so.5
#54 0x00007f86da188ccc in KCModuleLoader::loadModule(KCModuleInfo const&,
KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () at
/usr/lib64/libKF5KCMUtils.so.5
#55 0x00007f86da18f6ec in  () at /usr/lib64/libKF5KCMUtils.so.5
#56 0x00007f86da190355 in KCModuleProxy::realModule() const () at
/usr/lib64/libKF5KCMUtils.so.5
#57 0x00007f86da190873 in KCModuleProxy::showEvent(QShowEvent*) () at
/usr/lib64/libKF5KCMUtils.so.5
#58 0x00007f86d89284b2 in QWidget::event(QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#59 0x00007f86d88e7e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib64/libQt5Widgets.so.5
#60 0x00007f86d88eccd8 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#61 0x00007f86d6dc4ba5 in QCoreApplication::notifyInternal(QObject*, QEvent*)
() at /usr/lib64/libQt5Core.so.5
#62 0x00007f86d8924d6b in QWidgetPrivate::show_helper() () at
/usr/lib64/libQt5Widgets.so.5
#63 0x00007f86d8924caa in QWidgetPrivate::showChildren(bool) () at
/usr/lib64/libQt5Widgets.so.5
#64 0x00007f86d8924d2f in QWidgetPrivate::show_helper() () at
/usr/lib64/libQt5Widgets.so.5
#65 0x00007f86d8927717 in QWidget::setVisible(bool) () at
/usr/lib64/libQt5Widgets.so.5
#66 0x00007f86d8924cc0 in QWidgetPrivate::showChildren(bool) () at
/usr/lib64/libQt5Widgets.so.5
#67 0x00007f86d8924d2f in QWidgetPrivate::show_helper() () at
/usr/lib64/libQt5Widgets.so.5
#68 0x00007f86d8927717 in QWidget::setVisible(bool) () at
/usr/lib64/libQt5Widgets.so.5
#69 0x00007f86d890c42f in QStackedLayout::setCurrentIndex(int) () at
/usr/lib64/libQt5Widgets.so.5
#70 0x00007f86d890c624 in QStackedLayout::setCurrentWidget(QWidget*) () at
/usr/lib64/libQt5Widgets.so.5
#71 0x00007f86d8a7aa41 in QStackedWidget::setCurrentWidget(QWidget*) () at
/usr/lib64/libQt5Widgets.so.5
#72 0x00007f86d90e8b54 in  () at /usr/lib64/libKF5WidgetsAddons.so.5
#73 0x00007f86d6df4996 in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib64/libQt5Core.so.5
#74 0x00007f86d6d79677 in QItemSelectionModel::selectionChanged(QItemSelection
const&, QItemSelection const&) () at /usr/lib64/libQt5Core.so.5
#75 0x00007f86d6d7f7a0 in
QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection
const&) () at /usr/lib64/libQt5Core.so.5
#76 0x00007f86d6d806c5 in QItemSelectionModel::select(QItemSelection const&,
QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib64/libQt5Core.so.5
#77 0x00007f86d8b56fd7 in QListView::setSelection(QRect const&,
QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib64/libQt5Widgets.so.5
#78 0x00007f86d8b367ee in QAbstractItemView::mousePressEvent(QMouseEvent*) ()
at /usr/lib64/libQt5Widgets.so.5
#79 0x00007f86d89282ca in QWidget::event(QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#80 0x00007f86d8a224de in QFrame::event(QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#81 0x00007f86d8b3d4cb in QAbstractItemView::viewportEvent(QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#82 0x00007f86d6dc4de3 in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at
/usr/lib64/libQt5Core.so.5
#83 0x00007f86d88e7e6c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib64/libQt5Widgets.so.5
#84 0x00007f86d88ed2db in QApplication::notify(QObject*, QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#85 0x00007f86d6dc4ba5 in QCoreApplication::notifyInternal(QObject*, QEvent*)
() at /usr/lib64/libQt5Core.so.5
#86 0x00007f86d88ec1a1 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at
/usr/lib64/libQt5Widgets.so.5
#87 0x00007f86d894125b in  () at /usr/lib64/libQt5Widgets.so.5
#88 0x00007f86d8943453 in  () at /usr/lib64/libQt5Widgets.so.5
#89 0x00007f86d88e7e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib64/libQt5Widgets.so.5
#90 0x00007f86d88eccd8 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib64/libQt5Widgets.so.5
#91 0x00007f86d6dc4ba5 in QCoreApplication::notifyInternal(QObject*, QEvent*)
() at /usr/lib64/libQt5Core.so.5
#92 0x00007f86d81543b4 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() at /usr/lib64/libQt5Gui.so.5
#93 0x00007f86d8155bc5 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /usr/lib64/libQt5Gui.so.5
#94 0x00007f86d813ad68 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib64/libQt5Gui.so.5
#95 0x00007f86c92d3f20 in  () at /usr/lib64/libQt5XcbQpa.so.5
#96 0x00007f86d253cc84 in g_main_context_dispatch () at
/usr/lib64/libglib-2.0.so.0
#97 0x00007f86d253ced8 in  () at /usr/lib64/libglib-2.0.so.0
#98 0x00007f86d253cf7c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#99 0x00007f86d6e1ba3c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQt5Core.so.5
#100 0x00007f86d6dc2a63 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQt5Core.so.5
#101 0x00007f86d6dca5d6 in QCoreApplication::exec() () at
/usr/lib64/libQt5Core.so.5
#102 0x00000000004103cf in main ()

Reported using DrKonqi

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